Hatfields provides 24 hour emergency service for your restaurant’s
commercial grease trap throughout Maryland including Howard County, Anne
Arundel County, Carroll County, Baltimore County and Baltimore City MD.
If you don’t want to wait until it is an emergency call today for
an inspection and preventive maintenance on your grease trap.

Simply
put, a grease trap is a receptacle that kitchen wastewater flows through
before entering the sanitary sewer lines. This receptacle captures, or
"traps" grease. How? Grease, the industry term for animal fats
and vegetable oils, is 10 to 15% less dense, or lighter than water. Grease
is also immiscible with water, which is to say it does not mix with water.
Thus, grease and oils float on water. When kitchen wastewater flows through
a grease trap, the grease and oils rise to the surface and are trapped
inside the receptacle using a system of baffles. The captured grease and
oils fill the trap from the top down, displacing "clean" water
out of the bottom of the trap and into the sanitary sewer line. This is
why you see a grease "mat" when observing a grease trap. When
a significant layer of grease has accumulated, the trap must be cleaned
out.

Disposal of any fat, oil, or grease down a sink or floor drain can
cause serious problems for your plumbing system. FOGs can congeal in
sewer pipes, pumps, and other equipment, restricting flow of wastewater
in the sanitary sewer collection system and eventually cause a back
up into the facilities serviced by that pipe.

Is there a difference between grease traps and grease
interceptors?

Not really. Both devices do the same thing – separate and retain
free floating oils and greases. Small, in-floor
or under-the-sink prefabricated
steel units are most often referred as grease traps. Grease interceptors
are the larger units located outdoors that offer much longer hydraulic
retention times.

How can I ensure that my grease trap works effectively?

It is important that your grease trap is properly sized, installed,
and maintained according to the manufacturer’s recommendations.
Proper maintenance will help ensure that your grease trap is functioning
properly. Grease trap maintenance is often neglected, so be sure to
have the trap inspected and cleaned out regularly.

How do I determine the proper maintenance frequency for my grease
trap?

Your maintenance and clean-out schedule should follow the manufacturer’s
recommendations. It is recommended that you clean your grease trap
when the accumulated grease and sediment make up 25 percent of the
total liquid volume of the trap. Not every grease trap will require
the same maintenance schedule. The amount of grease discharged, the
flow volume, and the size of the grease trap will determine the maintenance
frequency.

What are some Do’s and Don'ts associated
with proper grease trap operation?

To avoid excessive FOG discharge or overloading of your grease trap,
you can scrape plates into the garbage prior to rinsing or use other
dry cleanup practices to reduce the amount of grease that goes down
the drain. Other ideas to ensure good operation of your grease trap:

Don’t pour fats, oils, or greases down the drain.
Educate your staff on proper cleaning procedure.
Don’t let food waste go through the grease trap. It can reduce
the trap’s effectiveness/capacity.
Regularly inspect and clean out your grease trap.
Use an additional grease recovery device to remove grease from sources
that adds large amounts of grease to your wastewater, such as pot wash
or pre-rinse sinks.
Do not flush interceptor with hot water to clear or clean the grease
trap in lieu of pumping out the device.
If a food grinder is determined to be necessary, it must be directly
followed by a solids interceptor, and then plumbed to the grease trap.
Install solids interceptors on sinks, dishwashers, and floor drains
to prevent solids from entering your grease trap.
Make sure when cleaning your grease trap that each chamber is cleaned
out thoroughly. Inspect and then fill up the separator with clean water
before you begin discharging.

How do I dispose of the collected FOGs?

Grease and other waste matter that has been removed from the interceptor
should not be introduced into any drain, sewer, or natural body of
water. This waste matter should be placed in proper containers for
recycling or disposal. Recycling of grease is encouraged when feasible.